Praca backend java – Warszawa

Wipro Technologies in Warsaw is seeking a Java Backend-Mid Senior Developer for a CONTRACT role. The position offers hybrid work with 1-3 days at the client office in Warsaw and requires solid experience in Java, J2EE, REST APIs, Spring, and microservices.You will design, develop, test, and maintain Java-based applications, collaborate with DevOps and QA...

Tieto Tech Consulting in Warsaw, Poland, seeks a Senior Java Backend Developer to support the COM5.Mobile platform used by telecom operators. The role focuses on backend services, TM Forum APIs, and data models, collaborating with product development and value teams.You will design and implement microservices with Java 21 and Quarkus, integrate PostgreSQL...

A tech startup is seeking an experienced back-end developer to join their team in Warsaw. The ideal candidate should have over 3 years of JAVA experience and a Bachelor's degree in Computer Science. Responsibilities include application lifecycle participation, debugging, and collaborating with front-end developers. The position offers a competitive salary...

Mastercard Inc. is seeking a Software Engineer II to support applications software through programming, analysis, design, development and delivery of software solutions.Responsibilities include programming, testing, documentation, maintenance, and collaboration with project teams to meet due dates. The role emphasizes security, stability, and scalability,...

Apifonica is hiring a backend engineer to design and implement Java-based services and RESTful APIs. You will build distributed, cloud-native applications using microservices, and work with Docker and Kubernetes in a DevOps-enabled environment.You will own services end-to-end, including monitoring, logging, and incident response, while applying secure...

HeadHR is seeking a Senior Java Developer for a public sector project based in Warsaw. The successful candidate will develop and maintain tax-related software systems while working in a structured Agile team.The ideal candidate should have strong Java development skills, experience in large-scale projects, and must be fluent in German (C1). The role offers a...

IT Factory, dynamiczna firma z doświadczeniem w zakresie rozwoju, wdrażania i wsparcia rozwiązań IT, dla polskiej znaczącej Firmy z branży ubezpieczeniowo-finansowej poszukuje Kandydatów/Kandydatek na stanowisko: Developer Fullstack (Java backend + Angular, portal/CMS) Model pracy: hybrydowo, 4 dni zdalnie + 1 dzień w biurze klienta w...

Luxoft in Warsaw is seeking a Senior Java backend developer to join a Regulatory Reporting Platform for a leading US investment bank. You will design and optimize scalable data processing pipelines using Java and Spark, handling large datasets from multiple sources to produce regulatory outputs for numerous jurisdictions.You will work with global teams...

Flix is seeking a skilled Java Engineer for a service agreement collaboration in Warsaw. You will design, develop and deliver reliable backend services within a self-organized team, focusing on internal tools for timetable and vehicle allocation.You will work with AWS, Kafka, Kubernetes and Terraform to build robust APIs, event-driven integrations and...

Flix is seeking a skilled Java Engineer for a freelance/B2B engagement to design and maintain Java backend features across the finance tech stack, including revenue accounting, invoicing, and settlements.You will build and operate event-driven data pipelines with Kafka, run services on AWS, and manage CI/CD pipelines with Docker/Kubernetes. Fluent English...

Solid w Warszawie poszukuje Senior Java Developera do pracy zdalnej nad backendowymi mikroserwisami w Javie. Doświadczenie min. 5 lat i znajomość Java, Spring Boot/Spring, Hibernate będzie kluczowe.Zakres obejmuje tworzenie i rozwijanie mikroserwisów, testy jednostkowe i integracyjne, a także pracę w środowisku CI/CD z code review i deploymentami....

DCG poszukuje Senior Backend Developera (Java/.NET) do pracy w Warszawie. Oferta obejmuje rozwój backendu, projektowanie REST API oraz pracę w zespole Agile. Wymagana jest biegłość w Java lub .NET, doświadczenie z Docker/Kubernetes oraz znajomość SQL.Preferowana jest znajomość CI/CD, testów jednostkowych i integracyjnych oraz języka angielskiego....

Allegro Ltd. is seeking a Software Engineer 2 (Java/Kotlin) focused on Search Relevance in Warszawa. You will work on a high-scale search engine, bridging JVM services with Python-based ML pipelines, and collaborate with researchers to deploy ranking models.You will also explore AI features, ML workflows, and semantic search, enjoying a dynamic environment...

Worldline is hiring for a Risk Technology Services Engineer in Warsaw. You will work on architecture, APIs, and cloud delivery while owning end-to-end delivery of features. You’ll mentor peers and shape technical direction in a hands-on, collaborative team.You’ll contribute to CI/CD pipelines, containerized services, and robust observability, with a...

Astek Group zdalnie poszukuje Back-End Developera / Technical Leada do zespołu pracującego nad CLP – workflow kredytowym dla klientów korporacyjnych. Praca w zespole rozwijającym Java, Angular i Oracle, z architekturą hybrydową, monolitem i mikroserwisami.Wymagane doświadczenie w backendzie, projektowaniu systemów rozproszonych i prowadzeniu...

Codilime is seeking a Java Software Engineer to join a strategic network automation initiative focused on accelerating onboarding of device features into an enterprise automation platform. You will transform XML/XPath-based feature definitions into maintainable Java implementations, and help evolve backend services.Working with AI-powered tools, you will...

Neula ищет разработчика бэкенда для платформы на JVM (Scala/Java/Kotlin). Ваша задача — проектировать и развивать backend с Akka, обеспечивать масштабируемость, безопасность в облаке и интегрировать LLM для...

ИТ Squad ищет опытного специалиста по Backend-разработке для проектов в области цифровых трансформаций. Вы будете работать над микросервисной архитектурой, Java/Spring Boot, PostgreSQL, и интеграциями через REST и...

Hyperexponential builds an AI-powered insurance pricing and underwriting platform. You will contribute from day one to the Workflow Underwriting stream, designing backend services, shaping domain models, and implementing agent-assisted workflows.You’ll work with senior engineers, product partners, and client teams to deliver reliable, scalable software...

DCG in Warszawa is seeking a senior Java developer to upgrade and maintain complex banking applications. You will design, develop and optimize Java applications supporting savings and investments products, with a focus on Java 21 and Spring Boot 3.3.x.You will collaborate with financial analysts, ensure tax compliance across countries, and participate in...